If you come across an issue where you receive error ‘The command is not available’ when you try clicking on out of office, try the following:
Please be careful when editing the registry. If unsure, seek help.
2) Click Start
3) Click run
4) Type regedit and click OK
5) Expand HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook
8.) Close registry editor
9) Open Outlook and try again